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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/arm/mach-s3c2410/mach-bast.c
downloadlinux-stericsson-2.6.12-rc2.tar.gz
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'arch/arm/mach-s3c2410/mach-bast.c')
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diff --git a/arch/arm/mach-s3c2410/mach-bast.c b/arch/arm/mach-s3c2410/mach-bast.c
new file mode 100644
index 000000000000..3bb97eb6e693
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+++ b/arch/arm/mach-s3c2410/mach-bast.c
@@ -0,0 +1,409 @@
+/* linux/arch/arm/mach-s3c2410/mach-bast.c
+ *
+ * Copyright (c) 2003-2005 Simtec Electronics
+ * Ben Dooks <ben@simtec.co.uk>
+ *
+ * http://www.simtec.co.uk/products/EB2410ITX/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Modifications:
+ * 14-Sep-2004 BJD USB power control
+ * 20-Aug-2004 BJD Added s3c2410_board struct
+ * 18-Aug-2004 BJD Added platform devices from default set
+ * 16-May-2003 BJD Created initial version
+ * 16-Aug-2003 BJD Fixed header files and copyright, added URL
+ * 05-Sep-2003 BJD Moved to v2.6 kernel
+ * 06-Jan-2003 BJD Updates for <arch/map.h>
+ * 18-Jan-2003 BJD Added serial port configuration
+ * 05-Oct-2004 BJD Power management code
+ * 04-Nov-2004 BJD Updated serial port clocks
+ * 04-Jan-2005 BJD New uart init call
+ * 10-Jan-2005 BJD Removed include of s3c2410.h
+ * 14-Jan-2005 BJD Add support for muitlple NAND devices
+ * 03-Mar-2005 BJD Ensured that bast-cpld.h is included
+ * 10-Mar-2005 LCVR Changed S3C2410_VA to S3C24XX_VA
+ * 14-Mar-2006 BJD Updated for __iomem changes
+*/
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/interrupt.h>
+#include <linux/list.h>
+#include <linux/timer.h>
+#include <linux/init.h>
+#include <linux/device.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/mach/irq.h>
+
+#include <asm/arch/bast-map.h>
+#include <asm/arch/bast-irq.h>
+#include <asm/arch/bast-cpld.h>
+
+#include <asm/hardware.h>
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <asm/mach-types.h>
+
+//#include <asm/debug-ll.h>
+#include <asm/arch/regs-serial.h>
+#include <asm/arch/regs-gpio.h>
+#include <asm/arch/regs-mem.h>
+#include <asm/arch/nand.h>
+
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/nand.h>
+#include <linux/mtd/nand_ecc.h>
+#include <linux/mtd/partitions.h>
+
+#include "clock.h"
+#include "devs.h"
+#include "cpu.h"
+#include "usb-simtec.h"
+#include "pm.h"
+
+#define COPYRIGHT ", (c) 2004-2005 Simtec Electronics"
+
+/* macros for virtual address mods for the io space entries */
+#define VA_C5(item) ((unsigned long)(item) + BAST_VAM_CS5)
+#define VA_C4(item) ((unsigned long)(item) + BAST_VAM_CS4)
+#define VA_C3(item) ((unsigned long)(item) + BAST_VAM_CS3)
+#define VA_C2(item) ((unsigned long)(item) + BAST_VAM_CS2)
+
+/* macros to modify the physical addresses for io space */
+
+#define PA_CS2(item) ((item) + S3C2410_CS2)
+#define PA_CS3(item) ((item) + S3C2410_CS3)
+#define PA_CS4(item) ((item) + S3C2410_CS4)
+#define PA_CS5(item) ((item) + S3C2410_CS5)
+
+static struct map_desc bast_iodesc[] __initdata = {
+ /* ISA IO areas */
+
+ { (u32)S3C24XX_VA_ISA_BYTE, PA_CS2(BAST_PA_ISAIO), SZ_16M, MT_DEVICE },
+ { (u32)S3C24XX_VA_ISA_WORD, PA_CS3(BAST_PA_ISAIO), SZ_16M, MT_DEVICE },
+
+ /* we could possibly compress the next set down into a set of smaller tables
+ * pagetables, but that would mean using an L2 section, and it still means
+ * we cannot actually feed the same register to an LDR due to 16K spacing
+ */
+
+ /* bast CPLD control registers, and external interrupt controls */
+ { (u32)BAST_VA_CTRL1, BAST_PA_CTRL1, SZ_1M, MT_DEVICE },
+ { (u32)BAST_VA_CTRL2, BAST_PA_CTRL2, SZ_1M, MT_DEVICE },
+ { (u32)BAST_VA_CTRL3, BAST_PA_CTRL3, SZ_1M, MT_DEVICE },
+ { (u32)BAST_VA_CTRL4, BAST_PA_CTRL4, SZ_1M, MT_DEVICE },
+
+ /* PC104 IRQ mux */
+ { (u32)BAST_VA_PC104_IRQREQ, BAST_PA_PC104_IRQREQ, SZ_1M, MT_DEVICE },
+ { (u32)BAST_VA_PC104_IRQRAW, BAST_PA_PC104_IRQRAW, SZ_1M, MT_DEVICE },
+ { (u32)BAST_VA_PC104_IRQMASK, BAST_PA_PC104_IRQMASK, SZ_1M, MT_DEVICE },
+
+ /* peripheral space... one for each of fast/slow/byte/16bit */
+ /* note, ide is only decoded in word space, even though some registers
+ * are only 8bit */
+
+ /* slow, byte */
+ { VA_C2(BAST_VA_ISAIO), PA_CS2(BAST_PA_ISAIO), SZ_16M, MT_DEVICE },
+ { VA_C2(BAST_VA_ISAMEM), PA_CS2(BAST_PA_ISAMEM), SZ_16M, MT_DEVICE },
+ { VA_C2(BAST_VA_ASIXNET), PA_CS3(BAST_PA_ASIXNET), SZ_1M, MT_DEVICE },
+ { VA_C2(BAST_VA_SUPERIO), PA_CS2(BAST_PA_SUPERIO), SZ_1M, MT_DEVICE },
+ { VA_C2(BAST_VA_DM9000), PA_CS2(BAST_PA_DM9000), SZ_1M, MT_DEVICE },
+ { VA_C2(BAST_VA_IDEPRI), PA_CS3(BAST_PA_IDEPRI), SZ_1M, MT_DEVICE },
+ { VA_C2(BAST_VA_IDESEC), PA_CS3(BAST_PA_IDESEC), SZ_1M, MT_DEVICE },
+ { VA_C2(BAST_VA_IDEPRIAUX), PA_CS3(BAST_PA_IDEPRIAUX), SZ_1M, MT_DEVICE },
+ { VA_C2(BAST_VA_IDESECAUX), PA_CS3(BAST_PA_IDESECAUX), SZ_1M, MT_DEVICE },
+
+ /* slow, word */
+ { VA_C3(BAST_VA_ISAIO), PA_CS3(BAST_PA_ISAIO), SZ_16M, MT_DEVICE },
+ { VA_C3(BAST_VA_ISAMEM), PA_CS3(BAST_PA_ISAMEM), SZ_16M, MT_DEVICE },
+ { VA_C3(BAST_VA_ASIXNET), PA_CS3(BAST_PA_ASIXNET), SZ_1M, MT_DEVICE },
+ { VA_C3(BAST_VA_SUPERIO), PA_CS3(BAST_PA_SUPERIO), SZ_1M, MT_DEVICE },
+ { VA_C3(BAST_VA_DM9000), PA_CS3(BAST_PA_DM9000), SZ_1M, MT_DEVICE },
+ { VA_C3(BAST_VA_IDEPRI), PA_CS3(BAST_PA_IDEPRI), SZ_1M, MT_DEVICE },
+ { VA_C3(BAST_VA_IDESEC), PA_CS3(BAST_PA_IDESEC), SZ_1M, MT_DEVICE },
+ { VA_C3(BAST_VA_IDEPRIAUX), PA_CS3(BAST_PA_IDEPRIAUX), SZ_1M, MT_DEVICE },
+ { VA_C3(BAST_VA_IDESECAUX), PA_CS3(BAST_PA_IDESECAUX), SZ_1M, MT_DEVICE },
+
+ /* fast, byte */
+ { VA_C4(BAST_VA_ISAIO), PA_CS4(BAST_PA_ISAIO), SZ_16M, MT_DEVICE },
+ { VA_C4(BAST_VA_ISAMEM), PA_CS4(BAST_PA_ISAMEM), SZ_16M, MT_DEVICE },
+ { VA_C4(BAST_VA_ASIXNET), PA_CS5(BAST_PA_ASIXNET), SZ_1M, MT_DEVICE },
+ { VA_C4(BAST_VA_SUPERIO), PA_CS4(BAST_PA_SUPERIO), SZ_1M, MT_DEVICE },
+ { VA_C4(BAST_VA_DM9000), PA_CS4(BAST_PA_DM9000), SZ_1M, MT_DEVICE },
+ { VA_C4(BAST_VA_IDEPRI), PA_CS5(BAST_PA_IDEPRI), SZ_1M, MT_DEVICE },
+ { VA_C4(BAST_VA_IDESEC), PA_CS5(BAST_PA_IDESEC), SZ_1M, MT_DEVICE },
+ { VA_C4(BAST_VA_IDEPRIAUX), PA_CS5(BAST_PA_IDEPRIAUX), SZ_1M, MT_DEVICE },
+ { VA_C4(BAST_VA_IDESECAUX), PA_CS5(BAST_PA_IDESECAUX), SZ_1M, MT_DEVICE },
+
+ /* fast, word */
+ { VA_C5(BAST_VA_ISAIO), PA_CS5(BAST_PA_ISAIO), SZ_16M, MT_DEVICE },
+ { VA_C5(BAST_VA_ISAMEM), PA_CS5(BAST_PA_ISAMEM), SZ_16M, MT_DEVICE },
+ { VA_C5(BAST_VA_ASIXNET), PA_CS5(BAST_PA_ASIXNET), SZ_1M, MT_DEVICE },
+ { VA_C5(BAST_VA_SUPERIO), PA_CS5(BAST_PA_SUPERIO), SZ_1M, MT_DEVICE },
+ { VA_C5(BAST_VA_DM9000), PA_CS5(BAST_PA_DM9000), SZ_1M, MT_DEVICE },
+ { VA_C5(BAST_VA_IDEPRI), PA_CS5(BAST_PA_IDEPRI), SZ_1M, MT_DEVICE },
+ { VA_C5(BAST_VA_IDESEC), PA_CS5(BAST_PA_IDESEC), SZ_1M, MT_DEVICE },
+ { VA_C5(BAST_VA_IDEPRIAUX), PA_CS5(BAST_PA_IDEPRIAUX), SZ_1M, MT_DEVICE },
+ { VA_C5(BAST_VA_IDESECAUX), PA_CS5(BAST_PA_IDESECAUX), SZ_1M, MT_DEVICE },
+};
+
+#define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
+#define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
+#define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
+
+static struct s3c24xx_uart_clksrc bast_serial_clocks[] = {
+ [0] = {
+ .name = "uclk",
+ .divisor = 1,
+ .min_baud = 0,
+ .max_baud = 0,
+ },
+ [1] = {
+ .name = "pclk",
+ .divisor = 1,
+ .min_baud = 0,
+ .max_baud = 0.
+ }
+};
+
+
+static struct s3c2410_uartcfg bast_uartcfgs[] = {
+ [0] = {
+ .hwport = 0,
+ .flags = 0,
+ .ucon = UCON,
+ .ulcon = ULCON,
+ .ufcon = UFCON,
+ .clocks = bast_serial_clocks,
+ .clocks_size = ARRAY_SIZE(bast_serial_clocks)
+ },
+ [1] = {
+ .hwport = 1,
+ .flags = 0,
+ .ucon = UCON,
+ .ulcon = ULCON,
+ .ufcon = UFCON,
+ .clocks = bast_serial_clocks,
+ .clocks_size = ARRAY_SIZE(bast_serial_clocks)
+ },
+ /* port 2 is not actually used */
+ [2] = {
+ .hwport = 2,
+ .flags = 0,
+ .ucon = UCON,
+ .ulcon = ULCON,
+ .ufcon = UFCON,
+ .clocks = bast_serial_clocks,
+ .clocks_size = ARRAY_SIZE(bast_serial_clocks)
+ }
+};
+
+/* NOR Flash on BAST board */
+
+static struct resource bast_nor_resource[] = {
+ [0] = {
+ .start = S3C2410_CS1 + 0x4000000,
+ .end = S3C2410_CS1 + 0x4000000 + (32*1024*1024) - 1,
+ .flags = IORESOURCE_MEM,
+ }
+};
+
+static struct platform_device bast_device_nor = {
+ .name = "bast-nor",
+ .id = -1,
+ .num_resources = ARRAY_SIZE(bast_nor_resource),
+ .resource = bast_nor_resource,
+};
+
+/* NAND Flash on BAST board */
+
+
+static int smartmedia_map[] = { 0 };
+static int chip0_map[] = { 1 };
+static int chip1_map[] = { 2 };
+static int chip2_map[] = { 3 };
+
+struct mtd_partition bast_default_nand_part[] = {
+ [0] = {
+ .name = "Boot Agent",
+ .size = SZ_16K,
+ .offset = 0
+ },
+ [1] = {
+ .name = "/boot",
+ .size = SZ_4M - SZ_16K,
+ .offset = SZ_16K,
+ },
+ [2] = {
+ .name = "user",
+ .offset = SZ_4M,
+ .size = MTDPART_SIZ_FULL,
+ }
+};
+
+/* the bast has 4 selectable slots for nand-flash, the three
+ * on-board chip areas, as well as the external SmartMedia
+ * slot.
+ *
+ * Note, there is no current hot-plug support for the SmartMedia
+ * socket.
+*/
+
+static struct s3c2410_nand_set bast_nand_sets[] = {
+ [0] = {
+ .name = "SmartMedia",
+ .nr_chips = 1,
+ .nr_map = smartmedia_map,
+ .nr_partitions = ARRAY_SIZE(bast_default_nand_part),
+ .partitions = bast_default_nand_part
+ },
+ [1] = {
+ .name = "chip0",
+ .nr_chips = 1,
+ .nr_map = chip0_map,
+ .nr_partitions = ARRAY_SIZE(bast_default_nand_part),
+ .partitions = bast_default_nand_part
+ },
+ [2] = {
+ .name = "chip1",
+ .nr_chips = 1,
+ .nr_map = chip1_map,
+ .nr_partitions = ARRAY_SIZE(bast_default_nand_part),
+ .partitions = bast_default_nand_part
+ },
+ [3] = {
+ .name = "chip2",
+ .nr_chips = 1,
+ .nr_map = chip2_map,
+ .nr_partitions = ARRAY_SIZE(bast_default_nand_part),
+ .partitions = bast_default_nand_part
+ }
+};
+
+static void bast_nand_select(struct s3c2410_nand_set *set, int slot)
+{
+ unsigned int tmp;
+
+ slot = set->nr_map[slot] & 3;
+
+ pr_debug("bast_nand: selecting slot %d (set %p,%p)\n",
+ slot, set, set->nr_map);
+
+ tmp = __raw_readb(BAST_VA_CTRL2);
+ tmp &= BAST_CPLD_CTLR2_IDERST;
+ tmp |= slot;
+ tmp |= BAST_CPLD_CTRL2_WNAND;
+
+ pr_debug("bast_nand: ctrl2 now %02x\n", tmp);
+
+ __raw_writeb(tmp, BAST_VA_CTRL2);
+}
+
+static struct s3c2410_platform_nand bast_nand_info = {
+ .tacls = 80,
+ .twrph0 = 80,
+ .twrph1 = 80,
+ .nr_sets = ARRAY_SIZE(bast_nand_sets),
+ .sets = bast_nand_sets,
+ .select_chip = bast_nand_select,
+};
+
+
+/* Standard BAST devices */
+
+static struct platform_device *bast_devices[] __initdata = {
+ &s3c_device_usb,
+ &s3c_device_lcd,
+ &s3c_device_wdt,
+ &s3c_device_i2c,
+ &s3c_device_iis,
+ &s3c_device_rtc,
+ &s3c_device_nand,
+ &bast_device_nor
+};
+
+static struct clk *bast_clocks[] = {
+ &s3c24xx_dclk0,
+ &s3c24xx_dclk1,
+ &s3c24xx_clkout0,
+ &s3c24xx_clkout1,
+ &s3c24xx_uclk,
+};
+
+static struct s3c24xx_board bast_board __initdata = {
+ .devices = bast_devices,
+ .devices_count = ARRAY_SIZE(bast_devices),
+ .clocks = bast_clocks,
+ .clocks_count = ARRAY_SIZE(bast_clocks)
+};
+
+void __init bast_map_io(void)
+{
+ /* initialise the clocks */
+
+ s3c24xx_dclk0.parent = NULL;
+ s3c24xx_dclk0.rate = 12*1000*1000;
+
+ s3c24xx_dclk1.parent = NULL;
+ s3c24xx_dclk1.rate = 24*1000*1000;
+
+ s3c24xx_clkout0.parent = &s3c24xx_dclk0;
+ s3c24xx_clkout1.parent = &s3c24xx_dclk1;
+
+ s3c24xx_uclk.parent = &s3c24xx_clkout1;
+
+ s3c_device_nand.dev.platform_data = &bast_nand_info;
+
+ s3c24xx_init_io(bast_iodesc, ARRAY_SIZE(bast_iodesc));
+ s3c24xx_init_clocks(0);
+ s3c24xx_init_uarts(bast_uartcfgs, ARRAY_SIZE(bast_uartcfgs));
+ s3c24xx_set_board(&bast_board);
+ usb_simtec_init();
+}
+
+void __init bast_init_irq(void)
+{
+ s3c24xx_init_irq();
+}
+
+#ifdef CONFIG_PM
+
+/* bast_init_machine
+ *
+ * enable the power management functions for the EB2410ITX
+*/
+
+static __init void bast_init_machine(void)
+{
+ unsigned long gstatus4;
+
+ printk(KERN_INFO "BAST Power Manangement" COPYRIGHT "\n");
+
+ gstatus4 = (__raw_readl(S3C2410_BANKCON7) & 0x3) << 30;
+ gstatus4 |= (__raw_readl(S3C2410_BANKCON6) & 0x3) << 28;
+ gstatus4 |= (__raw_readl(S3C2410_BANKSIZE) & S3C2410_BANKSIZE_MASK);
+
+ __raw_writel(gstatus4, S3C2410_GSTATUS4);
+
+ s3c2410_pm_init();
+}
+
+#else
+#define bast_init_machine NULL
+#endif
+
+
+MACHINE_START(BAST, "Simtec-BAST")
+ MAINTAINER("Ben Dooks <ben@simtec.co.uk>")
+ BOOT_MEM(S3C2410_SDRAM_PA, S3C2410_PA_UART, (u32)S3C24XX_VA_UART)
+ BOOT_PARAMS(S3C2410_SDRAM_PA + 0x100)
+ MAPIO(bast_map_io)
+ INITIRQ(bast_init_irq)
+ .init_machine = bast_init_machine,
+ .timer = &s3c24xx_timer,
+MACHINE_END